Cyber Resilience

CVE-2026-41505

High

Published: 07 May 2026

Published
07 May 2026
Modified
07 May 2026
KEV Added
—
Patch
—
CVSS Score v3.1 8.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
EPSS Score 0.0026 17.8th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-41505 is a high-severity Use of Insufficiently Random Values (CWE-330) vulnerability. Its CVSS base score is 8.7 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 17.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A04:2025 Cryptographic Failures

EU & UK References

Vulnerability details

RELATE is a web-based courseware package. Prior to commit 2f68e16, RELATE is vulnerable to predictable token generation in auth.py's make_sign_in_key() function and exam.py's gen_ticket_code() function. This issue has been patched via commit 2f68e16.

CWE(s)
CWE-330CWE-338

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1606 Forge Web Credentials Credential Access
Adversaries may forge credential materials that can be used to gain access to web applications or Internet services.
attack.mitre.org →
Why these techniques?

Predictable token generation in authentication functions directly enables forging valid sign-in keys/tickets for unauthorized web app access.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2024-58041Shared CWE-338
CVE-2025-40905Shared CWE-338
CVE-2025-66630Shared CWE-338
CVE-2024-40762Shared CWE-338
CVE-2026-33710Shared CWE-330
CVE-2026-27637Shared CWE-330
CVE-2021-26091Shared CWE-338
CVE-2026-25726Shared CWE-338
CVE-2026-25072Shared CWE-330
CVE-2025-68704Shared CWE-330

Affected Assets

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-12 Cryptographic Key Establishment and Management
addresses: CWE-330 CWE-338

Key generation under controlled management uses approved random-bit sources rather than insufficiently random values.

AT-5 Contacts with Security Groups and Associations
addresses: CWE-338

Security associations share details on cryptographically weak PRNGs, helping avoid their implementation in security-critical functions.

References